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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Technologies › Papermaking

Papermaking Patent Leaders All Time

Primary CPC class D21 · Section D

Rankings count each patent once by its primary Cooperative Patent Classification. All-time pages aggregate the full database; year pages use patent grant year.

Recent years: 2016201720182019202020212022202320242025

Patents per Year

Patents granted per year, 1996 to 2025Bar chart with a peak of 601 patents in 2001.peak 6011996: 482 patents19961997: 511 patents1998: 539 patents1999: 530 patents19992000: 546 patents2001: 601 patents2002: 560 patents20022003: 444 patents2004: 389 patents2005: 298 patents20052006: 291 patents2007: 257 patents2008: 250 patents20082009: 253 patents2010: 358 patents2011: 395 patents20112012: 397 patents2013: 365 patents2014: 385 patents20142015: 287 patents2016: 288 patents2017: 290 patents20172018: 277 patents2019: 286 patents2020: 322 patents20202021: 282 patents2022: 297 patents2023: 279 patents20232024: 299 patents2025: 277 patents2025

Top Inventors

Rank ↑ Inventor ↕ Patents ↕ Primary Company ↕
1 Paul Dennis Trokhan 164 The Procter & Gamble
2 John Allen Manifold 113 The Procter & Gamble
3 Christian Schiel 93 J.M. Voith Gmbh
#4 James E. Sealey, II 89 First Quality Tissue
#5 Michael Alan Hermans 86 Kimberly-Clark Worldwide
#6 Jeffrey Glen Sheehan 76 The Procter & Gamble
#7 Thomas Gerard Shannon 75 Kimberly-Clark Worldwide
#8 Mark Alan Burazin 74 Kimberly-Clark Worldwide
#9 Douglas Jay Barkey 72 The Procter & Gamble
#10 Steven L. Edwards 65 Georgia-Pacific
#11 Mike Thomas Goulet 64 Kimberly-Clark Worldwide
#12 Isto Heiskanen 61 Stora Enso Oyj
#13 Byrd Tyler Miller, IV 60 First Quality Tissue
#14 Ward William Ostendorf 56 The Procter & Gamble
#15 Scott Quigley 55 Voith Patent Gmbh
#16 Frank D. Harper 53 Fort James
#17 Kaj Henricson 53 A. Ahlstrom
#18 Stephen J. McCullough 53 Georgia-Pacific
#19 Vidar Snekkenes 53 Kvaerner Pulping Ab
#20 Markus Oechsle 52 Voith Sulzer Papiermaschinen Gmbh
#21 Osman Polat 52 The Procter & Gamble
#22 Gregory L. Wedel 51 Beloit
#23 Kevin Joseph Vogt 51 Kimberly-Clark Worldwide
#24 Kenneth Douglas Vinson 49 The Procter & Gamble
#25 Dean Van Phan 48 —
#26 Kaj Backfolk 48 Stora Enso Oyj
#27 Guy H. Super 47 Georgia-Pacific
#28 Frank Stephen Hada 46 Kimberly-Clark Worldwide
#29 Albrecht Meinecke 45 J.M. Voith Gmbh
#30 Robert Stanley Ampulski 45 The Procter & Gamble
#31 J. Robert Prough 44 Ahlstrom Machinery
#32 Jorma Laapotti 44 Valmet Aktiebolag
#33 Gerhard Kotitschke 43 J.M. Voith Gmbh
#34 Edwin X. Graf 42 Voith Sulzer Paper Technology North America
#35 Karl Steiner 42 J.M. Voith Gmbh
#36 Ryan Dominic Maladen 41 The Procter & Gamble
#37 C. Bertil Stromberg 40 Andritz
#38 Hung Liang Chou 39 Georgia-Pacific
#39 Luc Gingras 39 Andritz
#40 Jeffrey Dean Holz 38 Kimberly-Clark Worldwide
#41 Melvin Glenn Mitchell 38 Eastman Chemical
#42 Mark William Sachs 37 Kimberly-Clark Worldwide
#43 Daniel H. Sze 36 Gpcp Ip Holdings
#44 Steven Lee Barnholtz 36 The Procter & Gamble
#45 Thorsten Knobloch 36 The Procter & Gamble
#46 Hans-Peter Sollinger 35 J.M. Voith Gmbh
#47 Joseph R. Phillips 35 Kamyr
#48 Kenny Randolph Parker 35 Eastman Chemical
#49 Kenneth John Zwick 35 Kimberly-Clark Worldwide
#50 Lynda Ellen Collins 35 Kimberly-Clark Worldwide
#51 Peter Allen 35 Kimberly-Clark Worldwide
#52 Charles Chidozie Ekenga 34 The Procter & Gamble
#53 Jeffrey Dean Lindsay 34 Kimberly-Clark Worldwide
#54 John H. Dwiggins 34 Fort James
#55 Kathleen Diane Sands 34 The Procter & Gamble
#56 Ulrich Begemann 34 Voith Sulzer Papiermaschinen Gmbh
#57 Alfred Bubik 33 Sulzer-Escher Wyss Gmbh
#58 Andreas Meschenmoser 33 Voith Sulzer Papiermaschinen Gmbh
#59 Khosrow Parviz Mohammadi 33 The Procter & Gamble
#60 Robert J. Marinack 33 Fort James
#61 Takayoshi Konishi 33 Unicharm
#62 Wolfgang Ruf 33 Infineon Technologies Ag
#63 Daniel W. Sumnicht 32 Georgia-Pacific
#64 Arthur J. Nonni 31 Gp Cellulose Gmbh
#65 Bruno Marcoccia 31 Ahlstrom Machinery
#66 Charles Stuart Everett 31 Eastman Chemical
#67 Greg A. Wendt 31 Georgia-Pacific
#68 Luiz Carlos Silva 31 Voith Patent Gmbh
#69 Maurizio Tirimacco 31 Kimberly-Clark Worldwide
#70 Michael Gomer Stelljes 31 The Procter & Gamble
#71 Pekka Koivukunnas 31 Metso Paper
#72 Rudiger Kurtz 31 Voith Sulzer Papiermaschinen Gmbh
#73 Wolfgang Mayer 31 J.M. Voith Gmbh
#74 Charles E. Courchene 30 Gp Cellulose Gmbh
#75 Dieter Egelhof 30 J.M. Voith Gmbh
#76 Jeffrey Herman 30 Voith Patent Gmbh
#77 Lennart Gustavsson 29 Kvaerner Pulping Ab
#78 Anthony O. Awofeso 28 Fort James
#79 James Michael Singer 28 The Procter & Gamble
#80 Joseph H. Miller 28 Georgia-Pacific
#81 Klaus Doelle 28 Voith Sulzer Paper Technology North America
#82 Matti Hietaniemi 28 Kemira Oyj
#83 Marshall Medoff 28 Xyleco
#84 Michael John Rekoske 28 Kimberly-Clark Worldwide
#85 Richard A. Jewell 28 Weyerhaeuser Nr
#86 Scott Rosencrance 28 Kemira Oyj
#87 David Warren Loebker 27 The Procter & Gamble
#88 Herbert Holik 27 Sulzer-Escher Wyss Gmbh
#89 Henry J. Lee 27 Asten
#90 John Leslie Brent, Jr. 27 The Procter & Gamble
#91 Kathryn Christian Kien 27 The Procter & Gamble
#92 Thomas N. Kershaw 27 Fort James
#93 Thomas Scherb 27 Voith Sulzer Papiertechnik Patent Gmbh
#94 T. Philips Oriaran 27 Fort James
#95 David A. Beck 26 Voith Paper Patent Gmbh
#96 Gary S. Furman 26 Nalco Company
#97 Joachim Grabscheid 26 Voith Sulzer Papiermaschinen Gmbh
#98 Justin S. Pence 26 First Quality Tissue
#99 Richard Louis Underhill 26 Kimberly-Clark Worldwide
#100 Rolf Ryham 26 Ahlstromforetagen Swenska

Top Companies

Rank ↑ Company ↕ Patents ↕
1 Kimberly-Clark Worldwide 611
2 The Procter & Gamble 588
3 Metso Paper 368
#4 Beloit 363
#5 Voith Patent Gmbh 283
#6 J.M. Voith Gmbh 282
#7 Valmet Aktiebolag 282
#8 International Paper 271
#9 Albany International 251
#10 Valmet Oy 234
#11 Andritz 230
#12 Voith Sulzer Papiermaschinen Gmbh 200
#13 Basf Se 197
#14 Voith Paper Patent Gmbh 172
#15 Voith Sulzer Papiertechnik Patent Gmbh 169
#16 Valmet Paper Machinery 160
#17 Georgia-Pacific 151
#18 Hercules 149
#19 E.I. Du Pont De Nemours And 144
#20 The Mead 137
#21 Weyerhaeuser Nr 134
#22 Seiko Epson 126
#23 Kamyr 121
#24 Kemira Oyj 116
#25 Stora Enso Oyj 98
#26 Ichikawa Co. 95
#27 Nalco Chemical 95
#28 Asten 85
#29 Gpcp Ip Holdings 78
#30 Kvaerner Pulping Ab 77
#31 Nippon Paper Industries Co. 74
#32 Unknown 72
#33 Astenjohnson 70
#34 A. Ahlstrom 68
#35 Sulzer-Escher Wyss Gmbh 68
#36 Nalco Company 66
#37 Honeywell 66
#38 Akzo Nobel N.V. 61
#39 Kao 60
#40 Fort James 59
#41 Ecolab Usa 57
#42 Voith Sulzer Paper Technology North America 57
#43 Bayer Healthcare 56
#44 Eastman Chemical 53
#45 Metso Paper Karlstad Ab 51
#46 Oy Tampella Ab 51
#47 Black Clawson Company 50
#48 Ciba-Geigy 49
#49 Nippon Filcon Co. 48
#50 Upm-Kymmene 45
#51 Solenis Technologies 44
#52 First Quality Tissue 43
#53 Unicharm 43
#54 Ahlstrom Machinery 42
#55 Mo Och Domsjo Aktiebolag 42
#56 J.M. Huber 40
#57 Pulp And Paper Research Institute Of Canada 40
#58 Weavexx 39
#59 Valmet-Karlstad Ab 38
#60 Wangner Systems 38
#61 Westrock Mwv 37
#62 James River Corporation Of Virginia 36
#63 Sca Hygiene Products Ab 36
#64 Sunds Defibrator Industries Ab 35
#65 Union Camp 35
#66 Escher Wyss Gmbh 34
#67 Measurex 33
#68 Mitsubishi Paper Mills Limited 33
#69 Kvaerner Pulping Technologies Ab 32
#70 Oji Paper Co. 32
#71 Buckman Laboratories International 31
#72 Mitsubishi Electric 31
#73 USDA 31
#74 Daio Paper 30
#75 Gp Cellulose Gmbh 30
#76 Air Products And Chemicals 29
#77 Eka Nobel Ab 29
#78 Fiberlean Technologies Limited 28
#79 Ingersoll-Rand 28
#80 Xyleco 28
#81 Ciba Specialty Chemicals 27
#82 Champion International Corporation Limited 26
#83 Fpinnovations 26
#84 National Starch And Chemical Investment Holding Copporation 26
#85 Voith Sulzer Finishin Gmbh 26
#86 Consolidated Papers 25
#87 Institute Of Paper Science And Technology 25
#88 Jwi 25
#89 Mitsubishi Mining 25
#90 Scott Paper Limited 25
#91 Structured I 25
#92 HP 24
#93 Huyck 24
#94 Metso Fiber Karlstad Ab 24
#95 Aikawa Iron Works Co. 23
#96 Allied Colloids Limited 23
#97 Andritz-Ahlstrom 23
#98 Betz Laboratories 23
#99 Fujitsu Limited 23
#100 Henkel Limited 23